Each surge control vessel or bottoms receiver that is not routed back to the process and that meets the conditions specified in table 2 or table 3 of this subpart shall be equipped with a closed-vent system that routes the organic vapors vented from the surge control vessel or bottoms receiver back to the process or to a control device that complies with the requirements in Sec. 63.172 of this subpart, except as provided in Sec. 63.162(b) of this subpart, or comply with the requirements of Sec. 63.119(b) or (c) of subpart G of this part. [60 FR 18024, Apr. 10, 1995]